SAT官方试题分享：2014年10月08日(阅读)

Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.

Scientists have discovered that our sense of smell is surprisingly ______ , capable of distinguishing thousands of chemical odors.

A.rigid

B.inert

C.erratic

D.keen

E.innate

正确答案:D

解析:

One of the meanings of “keen” is “acutely sensitive.” Therefore, if our sense of smell is keen or acutely sensitive, it is capable of “distinguishing thousands of chemical odors.”

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